1. Boston University Sargent College of Health and Rehabilitation Sciences; Boston Massachusetts
2. Boston University School of Public Health; Boston Massachusetts
3. Boston University School of Medicine; Boston Massachusetts
4. Boston University School of Medicine, Boston, Massachusetts, and the National Institute for Health Research Manchester Musculoskeletal Biomedical Research Centre, Central Manchester National Health Service Foundation Trust, and Manchester Academic Health Science Centre; Manchester UK
5. Massachusetts General Hospital Institute of Health Professions; Boston
6. RTI International; Waltham Massachusetts
7. University of Massachusetts Medical School, Saint Vincent Hospital, and Reliant Medical Group; Worcester Massachusetts